A student buys 3 pencils for Rs.4 and sells all at for Rs.5. His gain or loss % is

Q. A man buys lemons at $3$ for $RS5$ and an equal number at $2$ for $RS4$. He mix them and sells $5$ for $RS9$. Find the gain percent or loss percent.

Q. A student buys a pen for ₹ 100 and sells it for ₹ 125. The amount of gain or loss is ₹ and percentage of gain or loss is .

Q. A man buys two pens at $Rs20$ each. He sells one at a gain of $5\%$ and other at a loss of $5$. Find his gain or loss per cent.

Q. A shopkeeper buys a tin for $Rs.50$ and sells it for $Rs.46$. Find his loss or gain percentage?

Q. A man buys eggs at $2$ for $Rs.1$ and an equal number at $3$ for $Rs.2$ and sells the whole at $5$ for $Rs.3.$ His gain or loss percent is